Supermarkets have slashed the price of Wonka bars by more than 50% in a bid to shift them with 100g slabs going for 50p instead of the usual £1.29 at Tesco and Morrisons

The off-the-wall fillings like Millionaire’s Shortbread and Creme Brulee failed to provide the snack giant with a golden ticket and the range is being dumped after less than a year.

Nestle launched Wonka bars as a tribute to the classic Roald Dahl book and two smash hit movies, Charlie and the Chocolate Factory, first starring Gene Wilder and then Johnny Depp as fantasy genius Willy Wonka.